硅质岩的三种成因类型分析与研究  

Analysis and Study of Three Genetic Types of Siliceous Rocks

作　　者：刘沛云 胡广[1,2] 谢静平 高兆龙 胡罗嘉 Liu PeiYun;Hu Guang;Xie Jingping;Gao Zhaolong;Hu Luojia(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500;不详)

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]中国石油碳酸盐岩储层重点实验室沉积与成藏西南石油大学研究分室,四川成都610500 [3]中国石油西南油气田公司勘探开发研究院,四川成都610041

出　　处：《石化技术》2024年第12期114-116,共3页Petrochemical Industry Technology

摘　　要：硅质岩是一类特殊化学沉积岩,从前寒武纪到新生代均有分布。由于抗风化能力强,对沉积时的原始信息保存较好,所以硅质岩是重建古环境的重要载体。地层中硅质岩产出形态多样,成因机制复杂。根据硅的来源和形成方式可以分为生物成因、化学成因、交代成因三大类。通过分析硅质岩的成因类型,可以更深入地理解硅质岩的形成机制,以及它们在不同地质环境中的分布特征。这些信息对于重建古环境和探索相关矿产资源具有重要意义。Chert is a kind of special chemical sedimentary rock and occurs from Precambrian to Cenozoic.Due to its strong resistance to weathering,it preserves the original information of the sediment well,making chert an important carrier for reconstructing the ancient environment.chert is an important carrier for reconstructing paleoenvironment.Although the cherts in stratum have various forms,and the formation mechanisms of cherts with different forms are complex.And they can be classified into three categories:biological,chemical,and metasomatic.Through the examination of the genetic classifications of chert,a profound comprehension of the mechanisms underlying chert formation and the patterns of their geological distribution can be achieved.Such insights are invaluable for the reconstruction of paleoenvironmental conditions and the assessment of associated mineral resource potential.

关 键 词：硅质岩 放射虫 成因 

分 类 号：G63[文化科学—教育学]